Ozone was first discovered and explored in 1984 by Jim Opedyke. Jim climbed a...
[Full text available in guidebook]
Sectors in alphabetical order:
| Gold Wall | 12 climbs |
| Heaven's Wall | 12 climbs |
| Middle Earth | 9 climbs |
| Mordor Wall | 11 climbs |
| New School Wall | 7 climbs |
| Old School Wall | 14 climbs |
| Old Tree Wall | 5 climbs |
| Shield Wall | 9 climbs |
| Snake Wall | 7 climbs |
| Sport School Wall | 2 climbs |
| The Shire | 4 climbs |
